[chun]

Dear all,

I am trying to combine the floatingObject ase and the propeller case in tutorials. I am using the version 2.3.0.

In the dynamicMeshDict, I put the cyclicAMI goes with the turbine. Hope they will floating together. I still have other part there to support the turbine, but let we just ignore that part and focus on the cyclicAMI part.

solver              sixDoFRigidBodyMotion;

sixDoFRigidBodyMotionCoeffs
{
    patches         (cyclicAMI turbine);
    innerDistance   0.05;
    outerDistance   0.35;

        mass            9.35368739253;
        centreOfMass    (0.499999998734 0.499643542159 0.406767085799);
        momentOfInertia (0.189180500074 0.189186953613 0.271681686205);
        orientation     (0.999999999989 -4.77090807147e-06 4.87915467083e-08 
                         4.77033850929e-06 0.999965469686 0.00831019932107 
                        -8.8437064246e-08 -0.0083101993204 0.999965469697);

    report          on;
    accelerationRelaxation 0.7;
}

However, after 0.03 second, the cyclicAMI get separated like the photo that I attached. You can also see the animation at https://www.dropbox.com/s/zliiynsein...side_whole.gif

Is anyone knows how I can floating them together?

Thanks

[chun]

Hi,
I will just answer myself.

Since I build my own motion function and I will move the axis, origin also the CyclicAMI mesh during the process, I move them in the wrong position. Hence, the AMI spin around the wrong axis will cause the separated.